Posts in the dmx category

An Introduction to Dimmer Packs

An Introduction to Dimmer Packs

Dimmer packs are a key component to any lighting system. The dimmer pack is a series of dimmers that lowers and raises the voltage allotted to a particular light source, thus raising and dimming the light source. It is important to realize that dimmers do not dim lights by themselves, they must be controlled by a console. All dimmer packs, whether portable, lightbar, or rack-mounted share basic features. All dimmer packs have outputs, or outlets that power the fixtures they are dimming. The most common output is the Edison dual socket. Dimmer packs have a specific number of channels, of which correspond to a specific piece of lighting equipment. All dimmer packs have a maximum wattage per channel. For portable dimmer packs, the typical per-channel wattage is either 600w or 1,200w. In order to protect the lights and the dimmer pack from short circuits and irregularities in electrical flow, all dimmer packs are outfitted with fuses or circuit breakers to safeguard the lighting system. The more complex dimmer packs have multiple output options, the Lightronics R-series rack-mounted dimmer pack has the option of Edison dual sockets, terminal strips, a patchbay, or two socapex outputs. Some dimmer backs also have outputs for less conventional lighting options, like LED rope lights. All dimmer packs also have a male and female XLR jacks, or universes. The XLR jacks allow you establish a connection between the controller and the dimmer pack, or set up a daisy-chain of dimmer packs. In order for the dimmer pack to communicate with the controller or other dimmer packs, the dimmer pack will have either a DIP switch or an LED display and controls to designate which channel on the controller the dimmer pack will occupy or what position in the daisy chain the dimmer pack has. 

Like theatre lighting technology at large, dimmer packs in the recent years have seen some remarkable technological innovations. Lightronics offers a wireless dimmer pack that replaces XLR wire connectivity with a wireless system in which the dimmer pack can communicate with the controller at up to 4,000ft feet away. Some dimmer packs also have more features directly on the dimmer pack itself including dimming curve selection and built in chases. The use of a LCD display in place of a DIP switch allows the dimmer packs to be more easily used and adapted to more purposes other than dimming.

Hopefully this article has given you the basic information to pick out the dimmer pack best for you. Be sure to check out our comprehensive dimmer pack offerings and packages today!

By Victor Lopez | | dimmer, dmx, lights, pack | 0 comments | Read more

Taking Control of Your Lighting System

  The controller is the brain of your lighting system. Controllers have always been central to production and theater lighting. With the adoption of the DMX512 protocol in 1986, the controller could easily and precisely dim numerous lights from a central location. As the demands of lighting productions and the technologies they require have become more advanced, so have the lighting controllers. Today, not only are controllers used to dim and raise lights, but they are used to control various parameters such as panning, gobos, colors, strobes, chasing, scene memory, etc. The introduction of
LED lighting into theater and production lighting has also added additional considerations in choosing an appropriate controller for your needs. This article is an introduction to today’s lighting controller and its features. 
  Generally speaking there are two broad categories of controllers, namely the dimming controller and the intelligent controller. The dimming controller is very basic and is geared to the individual who only wants to control dimmers. Intelligent controllers are for individuals who want to control dimmers and fixtures that require the control of numerous types of attributes and parameters. These controllers are compatible with moving lights and are typically found in concert venues, DJ lighting, large church lighting systems, etc. Optima’s DMX I, for example, has the ability to remember 6 chases, or light flash sequences, of 240 programmed scenes. The chase patterns can be activated using programmable chase buttons. The pan and tilt of moving lights can be manipulated using two jog wheels. Many intelligent controllers have the ability to precisely control light movements, chases, and fades. The Optima DMX I’s speed slider, fade time slider, and fine button allow minute adjustments to your chase speed, fade speed, and light tilting to perfect your lighting performance.

LED technology, particularly LED par cans, is the most important new technology to come to theatre and production lighting. Nearly all LED par cans available today come with dimmers and effects already built into them. Provided that your controller and your LED par can use the same protocol, the LEDs’ internal dimmers, colors, and effects can be triggered remotely by the controller. Because LED par cans have so many on board features they can be operated successfully on both a simple dimming controller and an intelligent controller. Making the decision concerning which controller to go with will depend largely on what other lighting components you have in your system and on what degree of control you need and want over your lights.

The technical capacities of lighting components and the controllers mean endless possibilities for the creative lighting designer. The integration of controllers and computer software adds another dimension of control and creativity to the lighting designer not otherwise possible. Optima’s Sweetlight USB to DMX512 box and control software, available for Mac and PC, allows for the full simulation and control of all facets of your lighting performance, including full syncing of music and lighting. The scene builder and 3D view allows you to fully construct your production; the generator function allows you to manipulate fully the movement, light, gobos, etc. of your lighting components, giving you unprecedented control. Regardless of whether you choose an intelligent controller or a computer-based controller, the future of lighting system control is promising.
By Victor Lopez | | dmx, led, stage lighting | 0 comments | Read more